Skip to main content

Full text of "The manufacture and properties of iron and steel"

See other formats


546
THE IEON INDUSTRY.
The ore is very fine and there is an immense amount of flue dust mixed with troublesome sublimate containing zinc. About 35 per cent, of lime is needed as a flux. The local furnaces are gradually ceasing to use this ore., but I found the works at Donners-marckhutte carrying it to the extent of 50 per cent, of the burden. Foreign ore is now used in the blast furnaces, the amount brought to the district in 1899 being 330,000 tons from Hungary and 275,-000 tons from Sweden, the quantity of foreign ore smelted being 40 per cent, more than the domestic product. The Hungarian ore is a carbonate and is roasted before using. It comes from Kotter-bach, south of the Tatra Mountains, some of the mines being owned by the works at Friedenshiitte. It is singular that Friedenshiitte should have been one of the first works to install gas engines driven by furnace gas, when the local conditions of dust would make the trial almost a crucial test, and when coal for firing boilers can be had for $1 per ton.
TABLE XXIV-H. Steel Works and Blast Furnaces in Upper Silesia.
	Location.	Blast Furnaces.	Bessemer Converters.		Open Hearth Furnaces.	
			Acid.	Basic.	Acid.	Basic.
Steel -works with, blast furnaces— JTriedenshutte ................	Friedenshutte.. Konigshutte. . . (Schwientoch-	4-110 7—80 8   75		4—12 2    8		2  17
Konigshutte .................			1   8			/4-12 U-10 2-15 (4-15 14-20 2-20 12—15
Bethlen Falva ..............						
	Borsigwerk. . . . Oberlagiewnlk.	3—75 3-70				
Hubertushiitte ...............						
Steel works without blast furnaces — Huldschiiisky'che ...... .....			1   8	1   8		
Baildonhiitte .................						1l-20 (3-15
Bismarckhutte. .... ..........	( Schwientoch-					11—20 h~ 20 \3-15
Blast  furnaces  without   steel works —	Bobreck ..... ...	7—60				
Donnersmarckhutte ....... _, Three others, one each	Zabrze .........	3—75				
						
The steel works of this district are of the usual German type. They are troubled, like a larger proportion of Continental and English plants, for lack of water. In America most works have been